Straight Seam Welded Stainless Steel Pipe

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Seamless/Welded
• Model NO.: 300 Series
• Surface Treatment: Bright, Pickling ,Polishing,Annealing,etc.
• Place of Origin: Zhejiang China
• Alloy or Not: Is Alloy
• Delivery Time: 8-14 Days
• Model Number: 304, 304L, 201, 316, 316L, 321, 317L, 309S, 310S,
• Application: Construction, Decorative, etc.
• Welding Line Type: ERW
• Processing Service: Bending, Welding, Punching, Decoiling, Moulding, C
• Item: 304 Inox Steel Tubing Steel Pipe
• Keyword: Stainless Steel Pipe
• Length: 5.8m, 6m, 8m, 11.8m or as Required.
• Used: Production Equipment and Lines for Food, Beverages
• Transport Package: According to Customer Requirements
• Specification: OD 6mm-5000mm
• Trademark: FLK
• Origin: Wenzhou, Zhejiang, China
• HS Code: 7304419000
• Production Capacity: 5000000pieces/Year

Product Description

Product Description

A "straight seam welded stainless steel pipe" refers to a type of pipe constructed from stainless steel with a longitudinal seam that has been welded straight down its length. This method of fabrication involves forming a stainless steel sheet into a pipe shape and then welding it along the seam. Here's an overview of the features, applications, and benefits of this type of pipe:

1. Manufacturing Process:

   • Straight Seam Welding: In this process, the edges of the steel sheet are joined and welded along a single straight seam. This is typically accomplished using high-frequency welding techniques, which are efficient and provide a strong bond.
   • Materials Used: Commonly, austenitic stainless steels like 304 and 316 are used due to their excellent corrosion resistance and formability. However, other grades can be used depending on the requirements for strength and resistance to various environmental factors.

2. Characteristics:

   • Weld Seam: The weld seam is the most distinctive feature of this type of pipe. While seamless pipes are generally considered to have more uniformity and strength, modern welding technology has significantly improved the quality of welded seams to the point that they often match or exceed the performance specifications of seamless pipes in many applications.
   • Surface Finish: The pipes can be finished in various ways after welding to enhance corrosion resistance and appearance. Common finishes include annealing and pickling, which help to restore the corrosion resistance impaired during welding.

3. Applications:

   • Construction and Structural Uses: Straight seam welded pipes are widely used in construction for structural support and piling due to their strength and versatility.
   • Transportation of Fluids: Ideal for piping systems that transport water, oil, gas, and chemicals, especially in lower-pressure environments.
   • Automotive Industry: Used in the manufacture of automotive exhaust systems, where durability and corrosion resistance are crucial.
   • General Engineering: Employed in various engineering applications where large diameter pipes are required.

4. Advantages:

   • Cost-Effectiveness: Welded pipes are generally less expensive to produce than seamless pipes, making them a cost-effective option for many projects.
   • Availability in Large Diameters: Straight seam welding is suitable for producing large-diameter pipes, which can be challenging to manufacture as seamless pipes.
   • Adaptability: They can be manufactured in varying wall thicknesses and diameters to suit specific needs, adding to their versatility in different applications.

5. Maintenance and Inspection:

   • Corrosion Monitoring: Regular inspection of the weld seams is important, as these areas can be susceptible to corrosion if the welding process was not properly conducted or if the finishing was inadequate.
   • Routine Maintenance: Includes checking for leaks, signs of wear, and mechanical damage, especially in applications involving corrosive substances or high-pressure conditions.

In summary, straight seam welded stainless steel pipes are a practical choice for many industries due to their balance of cost, performance, and adaptability. They are particularly valued in applications where large diameters and lengths are required, offering a r

 

 

 

 

Product Parameters

1.	Item	straight seam welded stainless steel pipe
2.	Standard	ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457, DIN 17459, JIS G3459, JIS G3463, GOS T9941, EN 10216, BS3605, GB13296,etc.
3.	Material	201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc.
4.	Specifications	Wall thickness	1.0-150mm(SCH10S-XXS)
		Outside diameter	3.0-2500mm(1/8"-100")
		Length	6m,5.8m,8m,11.8m,12m or as required.
5.	Surface	Pickling, annealing, polishing, bright, sand blast, hair line, etc.
6.	Price Term	Ex-work, FOB, CFR, CIF, or as required.
7.	Payment Term	T/T, L/C, Western Union.
8.	Export to	Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Saudi Arabia, Vietnam, Iran, India, Peru, Ukraine ,Brazil, South Africa, etc.
9.	MOQ	500kg
10.	Delivery Time	Prompt delivery or according to order's quantity.
11.	Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
12.	Application	widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc.
13.	Contact	If you have any question, please feel free to contact me.

Stee Grade	Chemical Composition %
	C	Cr	Ni	Mn	P	S	Mo	Si	Cu	N	Other
201	≤0.15	16.00-18.00	3.50-5.50	5.50-7.50	≤0.060	≤0.030		≤1		≤0.25
202	≤0.15	17.00-19.00	4.00-6.00	7.50-10.00	≤0.060	≤0.030		≤1		≤0.25
301	≤0.15	16.00-18.00	6.00-8.00	≤2.0	≤0.065	≤0.030		≤1.00
302	≤0.15	17.00-19.00	8.00-10.00	≤2.00	≤0.035	≤0.030		≤1.00
304	≤0.08	18.00-20.00	8.00-11.00	≤2.00	≤0.045	≤0.030		≤1.00
304L	≤0.035	18.00-20.00	8.00-12.00	≤2	≤0.045	≤0.030		≤1.00
305	≤0.12	17.00-19.00	11.00-13.00	≤2	≤0.045	≤0.03	Om	≤1.00
309S	≤0.08	22.00-24.00	12.00-15.00	≤2	≤0.045	≤0.030		≤1
310S	≤0.08	24.00-26.00	19.00-22.00	≤2	≤0.045	≤0.030		≤1.00
316	≤0.08	16.00-18.00	10.00-14.00	≤2	≤0.045	≤0.030	2.00-3.00	≤1.00
316L	≤0.035	16.00-18.00	10.00-14.00	≤2.00	≤45	≤0.03	2.00-3.0	≤1.00
317	≤0.08	18.00-20.00	11.00-14.00	2.00	≤0.045	≤0.030	3.00-4.00	≤1
317L	≤0.035	18.00-20.00	11.00-15.00	≤2.00	≤0.045	≤0.030	3.00-4.00	≤1.00
321	≤0.08	17.00-19.00	9.00-12.00	≤2	≤0.045	≤0.030		≤1.00			Ti5(C%-0.02 ~0.08
347	≤0.08	17.00-19.00	9.00-13.00	≤2.00	≤0.045	≤0.030		≤1.00			Nb≥10*C%

 

 

Product & Application

 

 

   Application of welded steel pipe,seamless steel pipe, cold hot rolled round pipe, and stainless steel pipe: construction material, buidlings, bridges, building decoration, chemical industry, car mainfold, water supply, petroleum pipeline, water pipe,boiler pipe, automobile pipe,hydraulic, building and equipment, pipeline